Well, I'd feel a lot more worse if the Rams were defeated in Super Bowl 56 and Donald expressed thoughts of walking away. That would be really deflating.
The Rams became Champions so the sting is less, imo.
If Donald walks, there will be a time when he will regret not attempting to defend the championship.
It's only March and Donald is expressing that the end could be here. I hope he doesn't do anything irrational because he could feel different in a few months.
